Practice question

What is the function of the turbocharger intercooler (interenfriador / postenfriador de aire) in a heavy commercial turbodiesel engine?

To heat the engine oil to 200°C
To cool the compressed air coming from the turbocharger before it enters the intake manifold, increasing air density and oxygen content for cleaner, more powerful and fuel-efficient combustion
To cool the radio
To freeze the exhaust soot

Answer: B — To cool the compressed air coming from the turbocharger before it enters the intake manifold, increasing air density and oxygen content for cleaner, more powerful and fuel-efficient combustion

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